hulk inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBI67U CVE: CVE-2024-57795 -------------------------------- Backport part of the code of commit 8d159eb2117b2. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Liu Jian <liujian56@huawei.com> --- drivers/infiniband/core/device.c | 4 ++++ include/rdma/ib_verbs.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 5b7abcf102fe..da0d3eda4cc2 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -2163,6 +2163,9 @@ struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, if (!rdma_is_port_valid(ib_dev, port)) return NULL; + if (!ib_dev->port_data) + return NULL; + pdata = &ib_dev->port_data[port]; /* @@ -2191,6 +2194,7 @@ struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, return res; } +EXPORT_SYMBOL(ib_device_get_netdev); /** * ib_device_get_by_netdev - Find an IB device associated with a netdev diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index bc45cc211839..9310f4c22dac 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -4326,6 +4326,8 @@ struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port, const struct sockaddr *addr); int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, unsigned int port); +struct net_device *ib_device_get_netdev(struct ib_device *ib_dev, + u32 port); struct net_device *ib_device_netdev(struct ib_device *dev, u8 port); struct ib_wq *ib_create_wq(struct ib_pd *pd, -- 2.34.1